Process for manufacturing multi-walled, preferably...

Details Process for manufacturing multi-walled, preferably... Process for manufacturing multi-walled, preferably...

B - Operations, Transporting

31

B

B31B 23/74 (2006.01) B31B 23/00 (2006.01) B31B 39/00 (2006.01)

Patent

CA 2285819

The present invention relates to a process for manufacturing multi-walled, preferably double-walled, plastic bags, in particular draw-string bags, from thermoplastic webs that, for purposes of simpler manipulation at comparatively high production speeds are initially each drawn from a supply roll in a double layer at essentially half web width, as compared to a single-layer web width, and then unfolded into a single layer of full web width, whereupon the flat foil webs are folded into a U-shape and the plastic bags or drawstring bags are manufactured from this in an automatic big-making machine, in the manner known per se.

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